Brief introduction
The RB-401 COD ammonia nitrogen total phosphorus total nitrogen detector is an economical multi parameter measuring instrument developed by our company. The instrument can measure four items: COD, ammonia nitrogen, total phosphorus, and total nitrogen. All testing items refer to relevant standards; It has functions such as fast, accurate, easy to operate, data storage, and data output; An optional printer can also be used to print measurement data in real-time, making it convenient for on-site analysis and discussion.
Applied to chemical and pharmaceutical enterprises, sewage treatment, environmental monitoring, water treatment plants, scientific research institutions, and universities, etc; Suitable for monitoring industrial wastewater, domestic sewage, surface water, and groundwater.
2、 Technical parameters
Table 1 Technical Parameters of RB-401 COD Ammonia Nitrogen Total Phosphorus Total Nitrogen Detector
Measurement parameters | COD | Ammonia nitrogen | total phosphorus | total nitrogen | ||
measuring method | HJ/T399-2007 Rapid digestion spectrophotometric method for water quality |
HJ535-2009 Nessler's reagent spectrophotometric method for water quality |
HJ671-2013 Ammonium molybdate spectrophotometric method for water quality |
HJ 636-2012 Alkaline persulfate digestion photometric method |
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Measurement range | 5-5000mg/L (segmented) | 0.01-50mg/L (segmented) | 0.01-12mg/L (segmented) | 0-100mg/L (segmented) | ||
resolution | 0.001 mg/L | |||||
accuracy | ≤±5%(F.S) | |||||
Dissolve and stabilize | 165 ℃, 15 minutes | No need to dissolve | 125 ℃, 30 minutes | |||
Anti chlorine interference | <1000mg/ L | - | - | |||
Batch processing volume | 12 water samples (optional 9 or 25) | |||||
Instrument dimensions | 270*200*120mm | |||||
Instrument weight | Host weight<2kg | |||||
Instrument power supply | AC(220V±5%),50Hz | |||||
ambient temperature | 5~40℃ | |||||
ambient humidity | ≤ 85% non condensing |
3、 Functional Features
1. COD detection refers to the HJ/T399-2007 standard; Ammonia nitrogen determination refers to HJ535-2009; Total phosphorus detection refers to HJ670-2013; Refer to HJ 636-2012 for total nitrogen detection.
2. Adopting semiconductor cold light source emitter and new optical circuit design, it has strong anti-interference ability, high measurement data accuracy, good stability, and a light source lifespan of tens of thousands of hours.
3. The measurement range is wide, and the range selection is based on the actual situation of the water sample.
4. Low reagent usage, low operating costs, and strong anti-interference ability.
5. The measurement host and digestion system are separated, controlled by independent power sources, and do not interfere with each other, which can effectively reduce measurement errors.
6. Dissolving temperature control range: ≤ 200 ℃, time control range ≤ 999 minutes, automatic timing;
7. Large screen LCD display, Chinese operation panel, simple and convenient.
8. It has data storage function (time, concentration, etc.) and can save 30000 measurement data and 100 standard curves.
9. Power off protection function ensures that the instrument is not damaged and measurement data is not lost.
10. There is a data output interface that can be connected to a computer to transmit measurement data to the computer.
11. Automatic constant temperature control system, PID regulation technology, constant temperature and high accuracy in the digestion process.
12. Intelligent design for fault self diagnosis makes instrument management and maintenance simple and convenient.
13. 7-point calibration mode, automatically calculates slope, intercept, and correlation coefficient, with high measurement accuracy.
14. Optional printer that can directly print measurement data and historical data;
4、 Standard List
Table 2 Standard List of RB-401 COD Ammonia Nitrogen Total Phosphorus Total Nitrogen Detector
Serial Number | name | quantity | Serial Number | name | quantity |
1 | Measurement host | 1 unit | 9 | power line | 2 pieces |
2 | 12 hole intelligent digestion instrument | 1 unit | 10 | data line | 1 piece |
3 | Dissolve the protective cover | 1 piece | 11 | Colorimetric dish | 4 of them |
4 | COD reagent | 1 set | 12 | Colorimetric dish rack | 1 piece |
5 | Ammonia nitrogen reagent | 1 set | 13 | Dissolving tube cooling rack | 1 piece |
6 | Total phosphorus reagent | 1 set | 14 | operation instructions | 1 copy |
7 | Total nitrogen reagent | 1 set | 15 | Certificate of Conformity/Warranty Card | 1 copy |
8 | Dissolving tube | 12 pieces |
